It IS obvious, but they are not that concerned about it backfiring. Trump repeatedly lies, contradicts himself, and when called on it just says "I didn't say that" even though he is on tape saying what he just denied. Like how they claimed it isn't a Muslim ban, even though that is what he ran on, and what Gulliani called it when he bragged about writing it.
The ban is also being practised by Kuwait on 5 of the countries. Given that most of the persons in those countries are Muslim it's pretty hard to miss them.
The UAE also support this.
People can easily say wrong things and that seems the most likely, regardless of what others may or may not have said.